Manufacture of turn shoes



Dec. 18, 1928. 1,695,578

w. G. DoDE MANUFAGTURE oF TURN sHoEs Original Filed May 4. 1921 Figi),J/ tllg.

Patented Dec. 18', 19.28.

UNITED STATES PATENT OFFICE.

WILLIAM G. DODGE, OF NEWBURYPORT, MASSACHUSETTS, ASSIGNOR T0 UNITEDSHANK & FINDINGS COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION 0FMASSACHUSETTS.

MANUFACTURE OF TURN SHOES.

Original application led Hay-4, 1921, Serial No. 466,682. Dividedandthis applicationv iiied April 26,

` 192'?. Serial No. 186,739.

Thisinvention relates to improvements in the manufacture of shoes andparticularly to improvements in methods of stifening the shank or archportions of turn shoes, the present application beinga division of myearlier application, Serial No. 466,682, filed May 4, 1921.

A turn shoe is customarily provided With a shank stifener, frequentlycalled a turn shank, consisting of a stiffener member, commonly called afiller piece, of leather or leatherboard which is shaped to it withinthe heel and shank portions of the shoe, and a metallic reinforcingstrip which is attached to the lower side of the iiller piece. Atitsheel end the filler piece is commonly secured to the shoe by theheel-attaching nails. The shank portion of the filler piece, or stienermember, however, is either leftr entirely unattached or it is secured inplace merely by glue or by asmall tack in such a manner that thisportion of the filler piece usually becomes detached after the shoe hasbeen Worn a short ing longitudinally relatively to the sole when theshoe is flexed, as when the wearer is walking. As a result in most turnshoes thev shank stiener cannot be relied upon properly to support andstiden the arch or shank. In view of the foregoing, one object of thepresent invention is to improve the manufacture of turn shoes so as toprovide for the desired adequate and permanent stii'ening of the shankor arch portions of the shoes.

To the attainment of this object, the invention, considered in oneaspect, provides a novel method which, as herein exemplified, consistsin securing together the upper and sole of a turn shoe and turning theshoe in the usual manner, locating on the sole of the shoe in apredetermined position within the shoe a com.- posite stiener unitcomprising a reinforcing vstrip of hardened metal and a' filler piecehaving heel and shank portions shape-d to fit the interior of the heeland shank portions of the shoe, the stiener unit having afastener-receiving hole extending through both the filler piece and thereinforcing strip, utilizing the wall of the hole in the stiifener unitas a positioning surface in determining the location in the sole of afastener for securing the stiifener unit to the sole, and passin theattached reinforcing strip, placing the,l

reinforcedshank stidener in a turn shoe, and utilizing the registeringholes in the filler piece and the reinforcing strip to determine thelocation in the shank portion of the sole of a fastener for securing theshank piece to the sole.

yThe invention will be explained With reference to the accompanyingdrawings, in

vwhich time. When unsecured to the solethe shank portion of the iillerpiece is capable of mov- Fig. 1 is a diagrammatic plan view of a metalstrip from which a plurality of rein-- forcing strip blanks have beencut;

Fig. 2 is a plan view of a reinforcing strip blank;

Figi?) is an end view of the blank;

Fig. 4 is a view, partly in section and partly in elevation,illustrating the shaping of the blank;

Fig. 5 is a side elevational View, partly in section, of the shankstiffener showing the leather stiffener member or filler piece with ametallic reinforcing strip made fast thereto;

Fig. 6 is a longitudinal section through a turn shoe in which theimproved shank stidener is incorporated; and

Fig. 7 is a plan view of' a metal strip from which has been cut aplurality of reinforcing strip blanks of modified form.

In Fig. l of `these drawings is shown a stri i of hardened metal, forexample tempere steel such as that commonly employed for making shankstieners for turn shoes. The strip l is subjected to a blankingoperation whereby it is cut at intervals therethrough to form individualreinforcing or stiifening strip blanks 2. Each blank terminates at its vends in prongs 3 and is punched or perforated at 4, preferably but notnecessarily in the cutting operation. Each blankis formed,

` forex-ample, between dies as shown in Fig.

A1 turn shoes but is applicable also in connection 4, the rongs 3 beingbent or struck up at the desired angle and the central portion of thestrip being curved to conform to the longitudinal curvature of the sliceshank and having -a central lon itudinal stiiening rib 5 formed therein.In ig. 5 there is shown at 6 a shoe ybottem member consisting of a pieceof leather, leatherboard or other suitable material, which is shaped toc'onform to the heel and-shank portions only of the insideofthe treadsole of a shoe and which has a thin skived forward end 7. Theillustrated mern` ber 6 constitutes a stiffener member or filler pieceof the type ordinarily reinforced by a metallic reinforcing orstiffening 'strip to form what isl commonly known as a turn shank orshank stilfener for turnv shoes.I The invention, however, is notnecessarily re-g stri'cted to operating upon shank stiffeners for withthe manufacture of shoes of other types such, for example, as McKaysewed shoes,

wherein it is desired to secure together a bottom'member, such as aninsole, a reinforcing and a tread sole.

stri

'lgie metal reinforcing stri which is made v from the blank 2 is madeast between the ends of the filler piece 6 by means 'of the prongs 3,which are driven and clinched therein. The prongs serve to maintain thestrip 2 and thefiller'piece 6 in assembled relation with theperforations 8 and 9 in registration so as to facilitate the insertionof a rivet or other fastener through them after they have been placed ina shoe. The filler piece 6 is then perforated at 8 in alinement with thehole 4, thus completing the makin of the shank lst-ilener and providinga sha stiffener unit which is read to be incorporated in a shoe. Nextthe sti ener unit, consisting of the filler piece 6 and the metal rein'-forcing strip, is placed in position in a turn stiffener. A'rivet 10 ispassed through the' hole in the sole and throu h the holes in the partsof the shank sti ener unit and lis clinched at 11 within the shoe. Thusit lwill be seen that the wall of the hole in the shank stiffener unitserves as a positioning surface in determining the location in the soleof the rivet or other fastener. The forward end portion of the fillerpiece may be made fast to the sole by any suitable securing means, andthe rear end of the filler piece may also v be made fast to the sole bylmeans such as the heel attachina nails 12.

The modified form of reinforcing strip blank shown in Fig. 7 is designedfor the purpose of decreasing the waste in the blanking or cutting outof the metal reinforcing strip. In this case prongs 3', corresponding tothe prongs 3, are made at one end of the metal blank, and prongs 3EL areformed at the other cnd of this blank, the prongs 3al of one blanknesting within' the prongs 3 of the adjacent blank. By this means thewaste froml the cutting of the prongs is much' reduced and the number ofb anks which may be cut from a long strip of stock somewhat increased.In other respects the lconstruction is the same as beforedescribed. l

By constructing a turn shank-stifener and incorporating it in a turnshoe as herein described, there has been produced a turn shoe having afirmly sup orted and adequately stiffened shank or arc Both the fillerpiece and the metal reinforcing strip are rigidly secured to the shankof the sole, a result which has not heretofore been accomplished so faras the inventor is aware. The assembl and securing together of the partso the shank stiffener and also the incorporatino of the stiffener in ashoe ina-y be conveniently and 1 expeditiously practised. This .will beapparent when it is realized that the 'fastener-receiving. erforation 8in the fillerpiece is initially ormed in aline- 'ment with theperforation 4 in the reinforcing strip and also that the perforation 9in the soleof the shoe'is initially formed in alinement with the alinedperforations 4 and 8 in the reinforcing strip and filler piece.Consequently when the filler piece and the reinforcing strip are beingassembled, and later when the stiffener unitA composed of these twoparts is being assembled with the sole of the shoe, it is unnecessary towaste time by bringing into registiationfastenerreceiving perforationsVoriginally made out of registering relation in the various parts.Furthermore,- the arrangement is such that the herein describedfastening means permanently Aand rigidly secures the stiifener unit andthe sole in assembled relation to preserve the arch at the shank of theshoe.

Having thus described my invention, what I claim as new and desire tosecure byv Letters Patent ofthe United States is:

1. That improvement inthe art of making turn shoes which consists informing a filler piece, blankin and unching a hole through a metallicreinforcing strip, forming said strip to the longitudinal curvature of ashoe shank, attachin the strip to the filler piece to form a shastiffener, punching a hole through the filler piece in alinement withthe hole in the reinforcing strip, positioning the shank stifener withina turn shoe, lmaking a hole through the sole of the shoe in alinementwith, the alined holes in the shank stiffener, and fastening the shankstiffenei in position by a. rivet passed through the holes in the soleand the shank stiifener.

unit comprising a reinforcing strip of hardened metal and a filler piecehaving heel and shank portions shaped to fit the interior of the heeland shank portions ofthe shoe, the stiifener unit having afastener-receiving hole extending through both the filler piece and thereinforcing strip, making a hole through the sole while utilizing thewall of' the hole in the stiffener unit as a positioning surface todetermine the location of the hole in the sole, and thereafter securingsaid stiffener unit to the sole by passing a fastener inwardly from theoutside of the shoe through the holes in the sole and in the stiffenerunit.

3. That improvement in the art of making turn shoes which comprisesforming a filler piece, blanking and punching a hole through a metallicreinforcing strip, attaching the reinforcing strip to the filler pieceto provide a reinforced shank stiffener, thereafter forming in thefiller piece a hole similar to and registering with the hole in theyattached reinforcing strip, placing the shank stiffener in a turnsho'c, and utilizing the registering holes in the filler piece and thereinforcing strip to determine the location, in the shank portion of thesole, of a fastener for securing the shank piece to the sole.

4. That improvement in the art of making turn shoes which comprisesforming a filler piece, blanking and punching a hole through a metallicreinforcing strip, attaching the reinforcing stri to the filler piece toprovide a reinforced s ank sti fener, thereafter forming in the fillerpiece a hole similar to and registering with the hole in the attachedrein orcing strip, and securing the shank stiiener to the sole of a shoeby passing a fastener inwardly through the sole of the shoe and throughthe alined holes in the shank stiifener.

5. That improvement in the art of making turn shoes which consists insecuring together the upper and sole of a turn shoe and turning the shoein the usual manner, locating on the sole of the shoe in a predeterminedposition within the shoe a composite stifener unit comprising areinforcing strip of hardened metal and a filler piece having heel andshank por tions shaped to fit the interior of the heel and shankportions of the shoe, the stilfener unit having a fastener-receivinghole extending l through both the filler piece and the reinforcingstrip, utilizing the wall of the hole in the stifener unit as apositioning surface in determining the location in the sole of afastener for securing the stiffener unit to the sole, and passing afastener inwardly from the outside of the shoe through the sole andthrough the stiffener unit.

6. That improvement in methods 0f making shoes which comprises providinga :fastener-receiving hole in a shank reinforcing strip, attaching thereinforcing strip to a shoe bottom member in predetermined relationthereto, then forming through said member a hole registering with thehole in the reinforcing strip, and thereafter securing said strip andsaid member to the sole of a shoe by a fastener while utilizing theholes in said member and said strip to locate said fastener relativelyto said sole.

In testimony whereof I have signed my name to this specification.

WILLIAM G. DODGE.

